The short version:
Are you interested in the ageing and sexing of northern European birds?
Visit our new online guide: www.ringersdigiguide.ottenby.se.
The slightly longer version:
Every keen birdwatcher or ringer puts a lot of effort in ageing the birds in front of them. Why? A simple answer could be ‘because it’s fun’. Yes, I agree, it really is fun! But in a larger context the methods for ageing and sexing are also important tools that may tell us things about the state of our environment. Without such tools we would not know much about breeding success, winter survival, age- or sex-related differences in the timing of the migration or in the choice of wintering areas etc. The list could be made much longer, and by recording the age and sex of your birds, the importance of your notebook will grow significantly. And, it’s fun…!
At Ottenby Bird Observatory, SE Sweden, ringing of birds have been carried out since the end of World War II. A lot of knowledge has evolved from this activity, and ringers have been passing their increasing skills further to younger generations for decades now. During the last 20 years, the digital revolution have blessed us with (among other things) the internet, as well as the digital camera. Two great inventions without which the world would be a lot more boring. The ringers at Ottenby started to digitally document birds of different ages in the early 2000’s. In the beginning, the photos were terribly bad, but practise combined with technological achievments soon made us realize that the results may actually be very useful when training young and promising ringers. The idea of a ‘digiguide’ was born! And since the images were digital, why not put them on the internet in order to make the biggest possible use of them…
Today, more than a decade later, Ottenby B.O. sits on a hard disc drive containing close to 70.000 images of 3.900 individual hand-held birds of more than 230 species. Compiling these into an appropriate format, suitable for public viewing, is a huge task! But now we have started.
Since a couple of days ago, the doors have been open on the following address:
www.ringersdigiguide.ottenby.se. Here you will find a user-friendly, practical and accurate guide to ageing and sexing of the birds passing through the Baltics (which are generally very similar to the species passing through British and other West European Bird Observatories). Initially, just above 30 species are included, but this number is planned to grow significantly during 2015.
So, what are the high-lights? Well, as a ringer I would perhaps vote for pedagogical birds such as the 2cy Tree Pipits showing three different generations of coverts (remember to click each photo in order to view in large format). But as a birder with a Western European perspective I believe I would go for the beautiful images in the sexing chapter of autumn Red-breasted Flycatchers! Smashing birds! And how many of you have seen the plumage of the lower bird on that page? And don’t miss the Long-eared Owls. Or the Nightjars. Or the Snow Buntings…
Ringers’ DigiGuide (yes, that’s what we chose to call it) is a living document. New species will be added, and bad photographs will be exchanged for better ones. But with new birds, new camera models and new light-systems pouring out each year, chances are that we never reach a state where we will feel we have fully arrived. But that’s in the nature of the project. And part of its appeal.
So, go a head and have a look around. The pages are not responsive, but the layout was chosen in order to work properly on smartphones and tablets as well. In that way we hope it will be of good use also in the field.